class_docstr: Test MSU GS/A L1B Reader.
class_docstr_tok: ["Test","MSU","GS\/A","L1B","Reader","."]
docstr: Test we can't get IR or VIS data as counts.
docstr_tok: ["Test","we","ca","n't","get","IR","or","VIS","data","as","counts","."]
code: def test_nocounts(self):
      """Test we can't get IR or VIS data as counts."""
      ds_ids = [make_dataid(name="C01", calibration="counts")]
      with pytest.raises(KeyError):
          self.reader.load(ds_ids)
  
      ds_ids = [make_dataid(name="C09", calibration="counts")]
      with pytest.raises(KeyError):
          self.reader.load(ds_ids)
  
file_path: satpy/satpy/tests/reader_tests/test_msu_gsa_l1b.py
imports: import os
  from unittest import mock
  import dask.array
  import numpy
  import pytest
  import xarray
  from satpy.tests.reader_tests.test_hdf5_utils import FakeHDF5FileHandler
  from satpy.tests.utils import make_dataid
label_desc: Use image node_id 4 for calling the TestMSUGSABReader obj's underlying member method code with example usage: obj.test_nocounts() without return types